BILATERAL HIP PAIN

 

M, 77 y.o, with bilateral hip pain.

Anteroposterior pelvis radiograph reveals complete obliteration of bilateral hip joints space with associated marginal osteophyte, subchondral sclerosis and cyst formation, also deformity of femoral heads and acetabulum, in keeping with severe osteoarthritis of the hips.

An asphericity of the femoral heads with osseous “bump” formation at the anterolateral femoral head-neck junction just lateral to the physeal scar is also noted, consistent with cam deformity.

This asphericity leads to unwanted force transmission to the acetabulum during flexion and internal rotation, leading to wear and tear of the labrum dan cartilage, and subsequently resulting in degenerative joint disease.

Cam deformity is usually causes by a primary osseous variant of the head-neck junction, but it also can be the result of several known etiologies include malunion of a femoral neck fracture, slipped capital femoral epiphysis, developmental dysplasia of the hip, or Legg-Calve-Perthes’ disease.

Courtesy of Dr. dr. Elysanti Dwi Martadiani, Sp.Rad(K)

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